【题目】读我国某区域图,然后回答问题。
(1)上图所示范围的地形自北向南大致可以分为A、B、C三大部分,其中A属于________________高原,B属于_______________平原
(2)简述B平原发展耕作业的自然条件。
(3)说明西安的地理位置特征
【答案】
(1)黄土高原;渭河平原
(2)B平原地形平坦;土层深厚、土壤肥沃;气候温暖湿润;水源丰富,便于灌溉。
(3)北半球、东半球;中纬度地区;北临渭河,南邻秦岭;中国大陆腹地黄河流域中部的关中盆地;西汉时期陆上丝绸之路的起点,陇海铁路上的铁路枢纽;陕西省省会
【解析】
试题分析:
(1)结合河流和等高线的分布判断,A区域等高线数值大于1500米,等高线稀疏,判读为高原地形,结合图中河流、城市可以判断为黄土高原。B区域等高线数值多在500米以下,等高线稀疏,判断为平原地形,结合城市与河流信息,可以判断B表示渭河平原。
(2)影响耕作业的自然条件从气候、地形、土壤、水源等方面依次分析。渭河平原属于河流冲积形成的,土壤肥沃,土层深厚,并且有渭河流经,灌溉方便。地形平坦,利于耕作。气候温暖湿润,有利于种植业发展。
(3)城市地理位置主要从绝对位置以及相对位置描述。绝对位置主要考虑经纬度位置,半球位置。相对位置主要描述与周边其他地理事物的关系,包括与城市、铁路、主要地形区等的相对位置关系。
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